{2}matches exactly 2 characters from the set below:
a-zone character from a (9710) to z (12210) (case sensitive)
\|the literal | (12410 / 1748 / 7C16)
*matches any number of characters from the set below:
|the literal | (12410 / 1748 / 7C16)
\wany word character
A-Zone character from A (6510) to Z (9010) (case sensitive)
\s+any whitespace character, repeated at least once
Group 1(\S*(?:\s(?!\s*OS=)\S*)*) \S*any non-whitespace character, repeated any number of times
Non-Capturing Group(?:\s(?!\s*OS=)\S*)* *repeats the group contents below any number of times:
\sany whitespace character
Negative Lookahead(?!\s*OS=) \s*any whitespace character, repeated any number of times
OS=the literal text OS= (case sensitive) \S*any non-whitespace character, repeated any number of times
\s+any whitespace character, repeated at least once
OS=the literal text OS= (case sensitive) g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string